"\uACF5\uC804 \uC8FC\uAE30(Orbital period, \u516C\u8F49\u9031\u671F) \uB610\uB294 \uC0AD\uB9DD \uC8FC\uAE30\uB294 \uD589\uC131 \uB4F1\uC774 \uADA4\uB3C4\uB97C \uD55C \uBC14\uD034 \uB3C4\uB294 \uC2DC\uAC04\uC744 \uB9D0\uD55C\uB2E4. \uD56D\uC131 \uC8FC\uAE30(sidereal period)\uB294 \uB2E4\uB978 \uD56D\uC131\uC744 \uAE30\uC900\uC73C\uB85C \uD0DC\uC591\uC744 \uD55C\uBC14\uD034 \uB3C4\uB294 \uC2DC\uAC04\uC744 \uB9D0\uD55C\uB2E4. \uACF5\uC804 \uC6B4\uB3D9\uC744 \uD558\uB294 \uCC9C\uCCB4\uAC00 \uD55C \uBC14\uD034 \uB3C4\uB294 \uB370 \uAC78\uB9AC\uB294 \uAE30\uAC04\uC744 \uB9D0\uD55C\uB2E4. \uD68C\uC804 \uC6B4\uB3D9\uC744 \uD558\uB294 \uCC9C\uCCB4\uC758 \uACF5\uC804 \uC8FC\uAE30\uC5D0 \uC601\uD5A5\uC744 \uC8FC\uB294 \uC694\uC778\uC740 2\uAC00\uC9C0\uC774\uB2E4. \uCCAB\uC9F8\uAC00 \uC911\uB825 \uAC00\uC18D\uB3C4\uC774\uACE0 \uB450\uBC88\uC9F8\uAC00 \uC911\uC2EC\uC73C\uB85C\uBD80\uD130\uC758 \uAC70\uB9AC\uB2E4. \uD654\uC131, \uBAA9\uC131, \uD1A0\uC131 \uB4F1 \uB2E4\uB978 \uD589\uC131\uB4E4\uC5D0 \uC788\uB294 \uC704\uC131\uB4E4\uB3C4 \uB300\uBD80\uBD84 \uC790\uC804 \uC8FC\uAE30\uC640 \uACF5\uC804 \uC8FC\uAE30\uAC00 \uC815\uD655\uD788 \uC77C\uCE58\uD55C\uB2E4. \uD0DC\uC591\uC744 \uAE30\uC900\uC73C\uB85C \uD558\uBA74, \uB2EC\uC758 \uACF5\uC804 \uC8FC\uAE30\uB294 \uC57D 29.53\uC77C\uC774 \uAC78\uB9AC\uBA70, \uC774 \uC8FC\uAE30\uB97C \uC0AD\uB9DD\uC6D4\uC774\uB77C\uACE0 \uD55C\uB2E4. \uC9C0\uAD6C\uAC00 \uB2EC\uC744 \uACF5\uC804\uD558\uB294\uB370 \uAC78\uB9AC\uB294 \uC2DC\uAC04\uC740 27.32(\uD56D\uC131\uC6D4)\uC774\uBA70, \uB2EC\uC758 \uC790\uC804 \uC2DC\uAC04\uB3C4 27.32\uC77C \uC774\uB2E4."@ko . "\uACF5\uC804 \uC8FC\uAE30(Orbital period, \u516C\u8F49\u9031\u671F) \uB610\uB294 \uC0AD\uB9DD \uC8FC\uAE30\uB294 \uD589\uC131 \uB4F1\uC774 \uADA4\uB3C4\uB97C \uD55C \uBC14\uD034 \uB3C4\uB294 \uC2DC\uAC04\uC744 \uB9D0\uD55C\uB2E4. \uD56D\uC131 \uC8FC\uAE30(sidereal period)\uB294 \uB2E4\uB978 \uD56D\uC131\uC744 \uAE30\uC900\uC73C\uB85C \uD0DC\uC591\uC744 \uD55C\uBC14\uD034 \uB3C4\uB294 \uC2DC\uAC04\uC744 \uB9D0\uD55C\uB2E4. \uACF5\uC804 \uC6B4\uB3D9\uC744 \uD558\uB294 \uCC9C\uCCB4\uAC00 \uD55C \uBC14\uD034 \uB3C4\uB294 \uB370 \uAC78\uB9AC\uB294 \uAE30\uAC04\uC744 \uB9D0\uD55C\uB2E4. \uD68C\uC804 \uC6B4\uB3D9\uC744 \uD558\uB294 \uCC9C\uCCB4\uC758 \uACF5\uC804 \uC8FC\uAE30\uC5D0 \uC601\uD5A5\uC744 \uC8FC\uB294 \uC694\uC778\uC740 2\uAC00\uC9C0\uC774\uB2E4. \uCCAB\uC9F8\uAC00 \uC911\uB825 \uAC00\uC18D\uB3C4\uC774\uACE0 \uB450\uBC88\uC9F8\uAC00 \uC911\uC2EC\uC73C\uB85C\uBD80\uD130\uC758 \uAC70\uB9AC\uB2E4. \uD654\uC131, \uBAA9\uC131, \uD1A0\uC131 \uB4F1 \uB2E4\uB978 \uD589\uC131\uB4E4\uC5D0 \uC788\uB294 \uC704\uC131\uB4E4\uB3C4 \uB300\uBD80\uBD84 \uC790\uC804 \uC8FC\uAE30\uC640 \uACF5\uC804 \uC8FC\uAE30\uAC00 \uC815\uD655\uD788 \uC77C\uCE58\uD55C\uB2E4. \uD0DC\uC591\uC744 \uAE30\uC900\uC73C\uB85C \uD558\uBA74, \uB2EC\uC758 \uACF5\uC804 \uC8FC\uAE30\uB294 \uC57D 29.53\uC77C\uC774 \uAC78\uB9AC\uBA70, \uC774 \uC8FC\uAE30\uB97C \uC0AD\uB9DD\uC6D4\uC774\uB77C\uACE0 \uD55C\uB2E4. \uC9C0\uAD6C\uAC00 \uB2EC\uC744 \uACF5\uC804\uD558\uB294\uB370 \uAC78\uB9AC\uB294 \uC2DC\uAC04\uC740 27.32(\uD56D\uC131\uC6D4)\uC774\uBA70, \uB2EC\uC758 \uC790\uC804 \uC2DC\uAC04\uB3C4 27.32\uC77C \uC774\uB2E4."@ko . . . . "\uACF5\uC804 \uC8FC\uAE30"@ko .